Language Selector and Spanish translation

Thanks to some community contributors we now have a full Spanish translation. This will be helpful to offer the game to more players and also to improve the locale support in my game code.

Other changes

• Added tooltips for question button.
• Fixed janky camera unlock for move.
• Fixed borders for shops.
• Added space for upgrade picker buttons.
• Reduce vertical spacing by removing headers.
• Add missing translation keys to es file.
• Prevent AI moving outside move range.
• Fixed exit tile spawn on boxes.
• Updated next rank display.
• Added progress display for next rank.
• Update shop and medicenter images to better fit the layout.

Wrapping up

Thanks to all the players who have reported bugs and feedback so far! Very excited to progress further in getting the game ready for Steam. In terms of builds this is almost the last one. Next build will likely focus more on bug fixes/tweaks.